SWOMCD
SPC MCD 142149
GAZ000-SCZ000-FLZ000-ALZ000-142245-
MESOSCALE DISCUSSION 1967
NWS STORM PREDICTION CENTER NORMAN OK
0449 PM CDT FRI SEP 14 2007
AREAS AFFECTED...PARTS OF NERN/CENTRAL INTO SWRN GA...SERN AL AND
PART OF WRN SC
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 142149Z - 142245Z
ISOLATED STRONG WIND GUSTS...SOME APPROACHING SEVERE LEVELS...WILL
BE POSSIBLE INTO THE EARLY EVENING ACROSS WRN INTO CENTRAL/NERN GA
AND ADJACENT PARTS OF SC...WITH A SIMILAR THREAT ALSO POSSIBLE SWWD
INTO SWRN GA/SERN AL.
REGIONAL RADARS INDICATED A LINE OF TSTMS EXTENDING FROM 30 E ATL
SWWD INTO WEST CENTRAL GA...WITH A BROKEN LINE OF TSTMS ALSO MOVING
ESEWD THROUGH SERN/SRN AL. LATE AFTERNOON SURFACE ANALYSIS
INDICATED THESE STORMS WERE DEVELOPING ALONG A COLD FRONT ADVANCING
EWD THROUGH THE NERN GULF COAST STATES. LINEAR FORCING ALONG THE
FRONT AS IT MOVES INTO A MOIST/MODERATELY UNSTABLE AIR MASS COMBINED
WITH ASCENT ATTENDANT WITH REMNANTS OF HUMBERTO AND A SECOND MID
LEVEL IMPULSE WILL SUPPORT ADDITIONAL TSTM DEVELOPMENT ALONG THE
COLD FRONT. GIVEN THAT STRONGER DEEP LAYER SHEAR IS LAGGING THE
FRONT...ISOLATED STRONG WIND GUSTS...SOME APPROACHING SEVERE
VALUES...ARE EXPECTED TO BE THE PRIMARY THREAT.
ONGOING WARM SECTOR TSTMS AND EVENTUAL ONSET OF BOUNDARY LAYER
COOLING STABILIZING THE PRE-FRONTAL AIR MASS SHOULD LIMIT THE EWD
EXTENT THAT THE LINE OF TSTMS CAN PROGRESS EWD.
.PETERS.. 09/14/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CAE...GSP...JAX...FFC...TAE...BMX...MOB...
31248653 32188553 33278433 34268313 34238255 33648221
31678295 30978357 30788442 31008573
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